kludging our way

Author: jappavoo

.gitignore

@@ -1 +1,5 @@
-*~
+*~
+vms
+*.ks
+*.tar
+

config/VMCPUS

@@ -0,0 +1 @@
+4

config/VMDISKSIZE

@@ -0,0 +1 @@
+200

config/VMMEM

@@ -0,0 +1 @@
+4096

vminstall.sh

@@ -1,19 +1,61 @@
-total_memory=${VMMEMORY:-$(free -m | awk '/^Mem:/{print $2}')}
-ram_allocation=${VMRAM:-$((total_memory * 3 / 4))}
-total_cores=${VMCORES:-$(nproc)}
+#!/bin/bash
+
+scriptdir=$(dirname $(realpath $0))
+configdir=$scriptdir/config
+
+# defaults for launching vms from the created image
+[[ -z $VMMEM ]] && [[ -a $configdir/VMMEM ]] && VMMEM=$(cat $configdir/VMMEM);
+VMMEM=${VMMEM:-8G}
+[[ -z $VMCPUS ]] && [[ -a $configdir/VMCPUS ]] && VMCPUS=$(cat $configdir/VMCPUS);
+VMCPUS=${VMCPUS:-4}
+[[ -z $VMDISKSIZE ]] && [[ -a $configdir/VMDISKSIZE ]] && VMDISKSIZE=$(cat $configdir/VMDISKSIZE);
+VMDISKSIZE=${VMDISKSIZE:-200}
+
+
+total_memory=$(free -m | awk '/^Mem:/{print $2}')
+# try to do the install using 1/4 of the free memory
+# install_ram_allocation=$((total_memory * 1 / 4))
+# default to do the install with the same amount of memory the VM default memory
+# size will be
+install_ram_allocation=${VMMEM}
+# try go do the install using 1/2 of the cores
+# default to do the install with the same amount of memory the VM default memory
+# size will be
+# install_total_cores=$(($(nproc)/2))
+#install_total_cores=$(($(nproc)/2))
+install_total_cores=${VMCPUS}
+
+
+
 ARCH=$(uname -i)
 DOMAIN=${1:-basevm-$ARCH}
 VMUSER=${2:-user}
 VMPASSWD=${3:-user}
 FEDORARELEASE=38
+VMSDIR=vms
+
+LOCATION=${LOCATION:-"https://download.fedoraproject.org/pub/fedora/linux/releases/$FEDORARELEASE/Everything/$(uname -i)/os/"}
 
-LOCATION=${LOCATION:-"https://download.fedoraproject.org/pub/fedora/linux/releases/FEDORARELEASE/Everything/$(uname -i)/os/"}
+info() {
+    echo configdir:$configdir VMMEM:$VMMEM VMCPUS:$VMCPUS VMDISKSIZE:$VMDISKSIZE
+    echo    Install using: memory:$install_ram_allocation cpus:$install_total_cores
+    echo    ARCH:$ARCH DOMAIN:$DOMAIN VMUSER:$VMUSER VMPASSWD:$VMPASSWD
+    echo    FEDORARELEASE:$FEDORARELEASE
+    echo    FEDORAURL:$LOCATION
+    echo    VMSDIR:$VMSDIR DOMAIN: $DOMAIN
+}
 
 if [[ -z $DOMAIN ]]; then
     echo "USAGE: $0 <DOMAIN NAME>"
     exit -1
 fi
 
+info
+
+if [[ ! -d $VMSDIR ]]; then
+    mkdir ${VMSDIR}
+fi
+
 if [[ ! -a $DOMAIN.ks ]]; then
 # create $DOMAIN.ks
 cat >$DOMAIN.ks <<EOF
@@ -99,12 +141,13 @@ make
 EOF
 fi
 
+
 virt-install \
   --name $DOMAIN \
-  --ram $ram_allocation \
-  --disk path="$(pwd)/disk/$DOMAIN.qcow2,size=200,format=qcow2" \
+  --memory="memory=$install_ram_allocation" \
+  --disk path="$(pwd)/${VMSDIR}/$DOMAIN.qcow2,size=${VMDISKSIZE},format=qcow2" \
   --check disk_size=off \
-  --vcpus $total_cores \
+  --vcpus $install_total_cores \
   --network bridge=virbr0 \
   --graphics none \
   --console pty,target_type=serial \

vmresize

@@ -0,0 +1,40 @@
+#!/bin/bash
+#set -x
+vmhost=${VMHOST:-abeast1-sesa.bu.edu}
+if [[ $vmhost != $(hostname) ]]; then
+    pre="ssh -x $vmhost"
+    pretty="ssh -x -t $vmhost"
+else
+    unset pre
+    unset pretty
+fi
+arch=${VMARCH:-$($pre uname -i)}
+base=${VMBASEVM:-basevm-$arch}
+
+domain=$1
+cpus=$2
+ram=$3
+
+if [[ -z $domain ]]; then
+    echo "USAGE:vmvresize <name> [cpus] [ram]"
+    echo "  where name is a the name of one of your  existing vms:"
+    $pre virsh list --all | grep -v $base
+    echo "  You can use vmnew to create a new one from the base."
+    echo "  Base vm is $base ... you should not use this one directly"
+    exit -1
+fi
+
+
+if [[ -z $cpus && -z $ram ]]; then
+  echo "$DOMAIN: cpus: $($pre virsh vcpucount)"
+  
+$pre virsh setmem ${DOMAIN} ${VMMEM} --config
+$pre virsh setvcpus ${DOMAIN} ${VMCPUS} --config
+
+if ! $pretty virsh console --force $domain; then
+   $pre virsh start $domain
+   if ! $pretty virsh console --force $domain; then
+       echo "WTF: can't seem to start or attach to kele console" > /dev/stderr
+       exit -1
+   fi
+fi

vmsave.sh

@@ -3,24 +3,32 @@
 
 ARCH=$(uname -i)
 DOMAIN=${VMBASEVM:-basevm-$ARCH}
-DISKDIR=disk
-DISK=${DISKDIR}/${DOMAIN}.qcow2
-#SAVEDIR=save
-
-#mkdir $SAVEDIR
+VMSDIR=vms
+DISK=${VMSDIR}/${DOMAIN}.qcow2
 
 echo "shutdown down $DOMAIN" > /dev/stderr
 virsh shutdown $DOMAIN
 
 echo "dumping xml for $DOMAIN" > /dev/stderr
-virsh dumpxml $DOMAIN > ${DISKDIR}/$DOMAIN.xml
+virsh dumpxml $DOMAIN > ${VMSDIR}/$DOMAIN.xml
 
 # brittle but will do
-echo "attempting to save nvram" > /dev/stderr
-virsh vol-download --sparse --pool nvram basevm-aarch64_VARS.fd --file disk/${DOMAIN}_VARS.fd
+#echo "attempting to save nvram" > /dev/stderr
+#virsh vol-download --sparse --pool nvram basevm-aarch64_VARS.fd --file ${VMSDIR}/${DOMAIN}_VARS.fd
+
+# JA: KLUDGE -- WHAT A PIECE OF @$%@$%@#$
+grep $USER ${VMSDIR}/basevm-aarch64.xml | grep -v $(pwd)/${VMSDIR} | while read file
+do
+    file=${file#*>}
+    file=${file%<*}
+    if [[ -a ${file} ]]; then
+	echo copying: ${file}
+	cp -r $file ${VMSDIR}
+    fi
+done
 
 #echo "copying disk for $DOMAIN" > /dev/stderr
 #cp --sparse=always ${DISK} ${SAVEDIR}/
 
 echo "create sparse tar ball"
-tar cvfS $DOMAIN.tar ${DISKDIR}
+tar cvfS $DOMAIN.tar ${VMSDIR}